A notebook computer heat dissipation dustproof device

Abstract

The application discloses a notebook computer heat dissipation and dust prevention device and belongs to the technical field of notebook computer heat dissipation bases. The device comprises a blowing assembly, the blowing assembly comprises a dust prevention box, a rubber pad is fixedly connected to the upper side wall of the dust prevention box, a centrifugal fan is fixedly connected to the lower side wall of the dust prevention box, a plurality of filter assemblies are arranged in the dust prevention box, a branch pipe is communicated between the plurality of filter assemblies, and an air pipe is communicated between the branch pipe and the centrifugal fan. The filter assembly comprises an air duct, a filter cylinder is arranged in the middle of the air duct, a scraping block is slidably connected to the inside of the air duct, and an annular block is fixedly connected to the air duct. The device can guide external air into the filter assembly through the centrifugal fan, the filter assembly can filter dust in the air, thereby ensuring that airflow flowing through the inside of the filter assembly can not only help notebook computer heat dissipation but also effectively reduce dust invasion. Meanwhile, cooperating with a dust removal assembly, the device can automatically clean dust filtered out by the air duct, and further improves ventilation performance and heat dissipation efficiency of the filter assembly.

Description

TECHNICAL FIELD

[0001] The present application relates to notebook cooling base technical field, specifically to a notebook computer cooling dustproof device. BACKGROUND

[0002] As an important product of modern technology, notebook computers have become the first choice for learning, working and entertainment with their excellent portability, high performance and multifunctionality. Many young people and office workers rely on notebooks for daily office tasks, online learning and game entertainment. However, when running programs or games involving a large number of resources for a long time, notebook computers are prone to overheating, which not only affects system performance, causing lag or crashes, but also shortens the service life of the device. In order to effectively deal with this problem, cooling bases have emerged as the ideal accessories for notebook users. Cooling bases provide additional cooling support to help notebook computers maintain an appropriate temperature and ensure stable operation under high load. A suitable cooling base not only prolongs the service life of the notebook and protects its internal components from heat, but also greatly improves the overall user experience.

[0003] A kind of adjustable notebook cooling base convenient to clean (grant announcement number 201810922434.5) is disclosed in Chinese patent, which includes base shell, the upper outer surface of the base shell is movably installed with two groups of folding upper cover, and the lower middle position of the upper outer surface of the base shell is movably installed with limit buckle close to two groups of folding upper cover, the middle position of the inner surface of the both sides of the base shell is slidably connected with second slide buckle, and the middle position of the inner surface of the upper of the base shell is slidably connected with first slide buckle, the front inner side of the base shell is equipped with two groups of joint slot, and the lower part of the base shell is movably installed with fixed base, the base shell and fixed base are movably connected by rotating shaft, the lower end outer surface of the base shell is movably installed with anti-skid leg in four corners.

[0004] In the above-mentioned patent, although the cooling base improves the cooling effect of the notebook computer by increasing the air intake, it also allows dust to be sucked into the notebook computer, thereby exacerbating dust accumulation and worsening the ventilation environment of the notebook computer, leading to poor notebook cooling. In addition, the existing cooling base is also prone to dust accumulation, and cleaning dust requires manual operation, which is extremely inconvenient. Therefore, a notebook computer cooling dustproof device is proposed to solve the above problems. SUMMARY

[0005] The present application aims to provide a notebook computer cooling dustproof device to solve the problems raised in the background art.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solutions:

[0007] The dustproof and heat dissipation device for notebook computer comprises a blowing assembly, the blowing assembly comprises a dustproof box, a rubber pad is fixedly connected to the upper side wall of the dustproof box, a centrifugal fan is fixedly connected to the lower side wall of the dustproof box, a plurality of filter assemblies are arranged in the dustproof box, a branch pipe is communicated between the plurality of filter assemblies, and a wind pipe is communicated between the branch pipe and the centrifugal fan.

[0008] The filter assembly comprises a wind cylinder, a filter cylinder is arranged in the middle of the wind cylinder, a scraping block is slidably connected to the inside of the wind cylinder, an annular block is fixedly connected to the wind cylinder, a moving sleeve is slidably connected to the wind cylinder, an extension tube is fixedly connected between the annular block and the moving sleeve, a dust removal assembly for driving the scraping block and the moving sleeve to move together is arranged in the wind cylinder, and one valve assembly is fixedly connected between the plurality of wind cylinders.

[0009] As a further scheme of the present application, the dust removal assembly comprises two rotating rods rotatably connected to the lower side wall of the wind cylinder, two winding discs are fixedly connected to each of the two rotating rods, and a pull rope is wound on each of the plurality of winding discs and fixedly connected to the scraping block and the moving sleeve.

[0010] As a further scheme of the present application, two dustproof shells are fixedly connected to the inner wall of the wind cylinder, the rotating rods are arranged in the dustproof shells, and the pull ropes are arranged through the dustproof shells.

[0011] As a further scheme of the present application, a belt gear is fixedly connected to the lower end of each of the two rotating rods, one toothed belt is sleeved between the two belt gears, a worm wheel is fixedly connected to the lower side wall of one of the belt gears, and a worm is rotatably connected between the inner walls of the left and right sides of the dustproof box and engaged with the worm wheel.

[0012] As a further scheme of the present application, a motor is fixedly connected to the side wall of the dustproof box, and the output end of the motor is fixedly connected with the worm.

[0013] As a further scheme of the present application, a first belt pulley is fixedly connected to the worm, one valve cylinder is communicated between the plurality of wind cylinders, a valve column is rotatably connected in the valve cylinder, a second belt pulley is rotatably connected to one end of the valve column, a belt is sleeved between the first belt pulley and the second belt pulley, a plurality of valve holes corresponding to the wind cylinders are formed in the valve column, and a ventilation assembly is fixedly connected to the valve column.

[0014] As a further scheme of the present application, the ventilation assembly comprises a plurality of adjusting openings formed in the valve cylinder, and a plurality of thrust cylinders corresponding to the adjusting openings are fixedly connected to the side wall of the valve column.

[0015] As a further further scheme of the present application, a dustproof net is mounted on the upper side wall of the dustproof box, a baffle located at the lower side of the dustproof net is slidably connected to the lower inner wall of the dustproof box, a fixed plate is fixedly connected to the lower inner wall of the dustproof box, two insertion rods are fixedly connected to the side wall of the baffle, springs are fixedly connected to the fixed plate through the two insertion rods, and the springs are fixedly connected between the spring plate and the fixed plate.

[0016] As a further further scheme of the present application, a dustproof net is mounted on the upper side wall of the dustproof box, a baffle located at the lower side of the dustproof net is slidably connected to the lower inner wall of the dustproof box, a fixed plate is fixedly connected to the lower inner wall of the dustproof box, two insertion rods are fixedly connected to the side wall of the baffle, springs are fixedly connected to the fixed plate through the two insertion rods, and the springs are fixedly connected between the spring plate and the fixed plate.

[0017] As a further further scheme of the present application, a dustproof net is mounted on the upper side wall of the dustproof box, a baffle located at the lower side of the dustproof net is slidably connected to the lower inner wall of the dustproof box, a fixed plate is fixedly connected to the lower inner wall of the dustproof box, two insertion rods are fixedly connected to the side wall of the baffle, springs are fixedly connected to the fixed plate through the two insertion rods, and the springs are fixedly connected between the spring plate and the fixed plate.

[0018] Compared with the prior art, the present application has the following advantages:

[0019] When the present application is used, external air is introduced into the filtering assembly by the centrifugal fan, the filtering assembly can filter dust in the air, thereby ensuring that the airflow flowing through the inside thereof not only helps the notebook computer to dissipate heat, but also effectively reduces the invasion of dust, and meanwhile, in cooperation with the dust removal assembly, the dust filtered out by the air duct can be automatically cleaned, thereby further improving the ventilation performance and heat dissipation efficiency of the filtering assembly.

[0020] 2. When the present application is used, the baffle is opened by the ventilation assembly when the dust removal assembly is cleaning the filtering assembly, so that external air enters the notebook computer after being filtered by the dustproof net, which can avoid poor heat dissipation of the notebook computer due to insufficient air flow during cleaning.

[0021] 3. When the present application is used, the ventilation of the filtering assembly can be monitored in real time by the wind speed sensor, and when the ventilation of the filtering assembly becomes poor, the dust removal assembly is automatically driven by the valve assembly to clean the filtering assembly, so that the ventilation of the filtering assembly is maintained at a high level, thereby improving the stability of the device heat dissipation. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a three-dimensional view of a notebook computer heat dissipation dustproof device;

[0023] Figure 2 It is a structure schematic view of the air blowing assembly part of a notebook computer heat dissipation dustproof device;

[0024] Figure 3 It is a structure schematic view of the filtering assembly part of a notebook computer heat dissipation dustproof device;

[0025] Figure 4 It is Figure 3 It is an enlarged view of A in FIG. 6;

[0026] Figure 5 This is a schematic diagram of the structure inside a dustproof box in a heat dissipation and dustproof device for a notebook computer;

[0027] Figure 6 for Figure 5 Enlarged view of point B in the middle;

[0028] Figure 7 This is a schematic diagram of the structure of a valve assembly in a heat dissipation and dust prevention device for a laptop computer;

[0029] Figure 8 This is a schematic diagram of the structure of part of a heat dissipation and dust prevention device for a notebook computer;

[0030] Figure 9 This is a schematic diagram of the structure of a wind speed sensor in a heat dissipation and dust prevention device for a laptop computer;

[0031] Figure 10 This is a state diagram of the dust removal component in a heat dissipation and dust prevention device for a laptop computer during cleaning.

[0032] In the picture:

[0033] 101. Dustproof box; 102. Rubber pad; 103. Centrifugal fan; 104. Air duct; 105. Branch pipe;

[0034] 2. Filter assembly; 201. Air cylinder; 202. Filter cartridge; 203. Scraper block; 204. Ring block; 205. Moving sleeve; 206. Telescopic tube;

[0035] 3. Dust removal assembly; 301. Rotating rod; 302. Reel; 303. Pull rope; 304. Dust cover; 305. Belt gear; 306. Toothed belt; 307. Worm gear; 308. Worm;

[0036] 4. Valve assembly; 401. Motor; 402. First pulley; 403. Valve cylinder; 404. Valve column; 405. Second pulley; 406. Belt; 407. Valve hole;

[0037] 5. Ventilation assembly; 501. Adjustment port; 502. Thrust cylinder; 503. Dust screen; 504. Baffle; 505. Fixing plate; 506. Insert rod; 507. Spring plate; 508. Spring;

[0038] 6. Wind speed sensor;

[0039] 7. Dust collection assembly; 701. Dust collection box; 702. Dust collection net. DETAILED DESCRIPTION

[0040] Clearly, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts are within the scope of the present application.

[0041] Embodiment one: please refer to Figures 1 to 7 In the embodiments of the present application, a heat dissipation and dust prevention device for a notebook computer includes a blowing assembly, the blowing assembly includes a dust prevention box 101, a plurality of air outlets are formed in the upper side wall of the dust prevention box 101, a rubber pad 102 is fixedly connected to the upper side wall of the dust prevention box 101, the rubber pad 102 is provided in multiple turns, so as to adapt to notebooks of different sizes, so that the rubber pad 102 can be fully attached to the bottom of the notebook, and external air can be prevented from directly entering the inside of the notebook, a centrifugal fan 103 is fixedly connected to the lower side wall of the dust prevention box 101, a plurality of filtering assemblies 2 for filtering air are arranged in the dust prevention box 101, a branch pipe 105 is in communication between the plurality of filtering assemblies 2, an air pipe 104 is in communication between the branch pipe 105 and the centrifugal fan 103, and when the centrifugal fan 103 is started, external air enters the inside of the filtering assembly 2 through the air pipe 104 and the branch pipe 105.

[0042] The filter assembly 2 comprises a wind pipe 201, a filter cylinder 202 is arranged in the middle of the wind pipe 201, a scraping block 203 is slidably connected in the wind pipe 201, an annular block 204 is fixedly connected on the wind pipe 201, a moving sleeve 205 is slidably connected on the wind pipe 201, an extension tube 206 is fixedly connected between the annular block 204 and the moving sleeve 205, a dust removal assembly 3 for driving the scraping block 203 and the moving sleeve 205 to move together is arranged in the wind pipe 201, the same valve assembly 4 is fixedly connected between a plurality of wind pipes 201, the dust removal assembly 3 comprises two rotating rods 301 rotatably connected to the lower side walls of the wind pipe 201, two winding discs 302 are fixedly connected to each of the rotating rods 301, a plurality of pull ropes 303 are wound on the winding discs 302, and the two groups of pull ropes 303 are fixedly connected with the scraping block 203 and the moving sleeve 205 respectively, since the two winding discs 302 fixed on the rotating rod 301 have the same diameter, when the two winding discs 302 rotate at the same time, the scraping block 203 and the moving sleeve 205 can move at the same time, two dustproof shells 304 are fixedly connected to the inner walls of the wind pipe 201 below, and the rotating rods 301 are located in the dustproof shells 304, the pull ropes 303 pass through the dustproof shells 304, two belt gears 305 are fixedly connected to the lower ends of the rotating rods 301, and the same toothed belt 306 is sleeved between the two belt gears 305, when the two belt gears 305 rotate in the same direction through the toothed belt 306, the rotating rods 301 drive the winding discs 302 to rotate, so that the two groups of winding discs 302 respectively pay off and wind the pull ropes 303 when rotating, thereby avoiding that the winding discs 302 cannot rotate due to the limitation of the pull ropes 303, a worm wheel 307 is fixedly connected to the lower side wall of one of the belt gears 305, a worm gear 308 meshing with the worm wheel 307 is rotatably connected between the inner walls of the dustproof box 101 on the left and right sides, when the rotating rod 301 rotates, the other rotating rod 301 can be driven to rotate through the belt gear 305 and the toothed belt 306, during the rotation of the two rotating rods 301, the two winding discs 302 can respectively wind and pay off the pull ropes 303, thereby moving the moving sleeve 205 and the scraping block 203 through the two pull ropes 303, when the moving sleeve 205 and the scraping block 203 move to the filter cylinder 202, the air introduced into the wind pipe 201 will bypass the scraping block 203, enter from the outside of the filter cylinder 202, and effectively blow the dust on the inner wall of the filter cylinder 202, so that the dust can be blown away, and the dust that cannot be blown away and has strong adhesion can also be scraped away under the pushing of the scraping block 203.

[0043] The valve assembly 4 includes a motor 401 fixedly connected to the side wall of the dustproof box 101, and the output end of the motor 401 is fixedly connected to the worm 308, the worm 308 is fixedly connected to the first pulley 402, and the multiple air cylinders 201 are connected to the same valve cylinder 403, the valve cylinder 403 is internally connected to a valve column 404, one end of the valve column 404 is rotatably connected to a second pulley 405 through a damping bearing, a belt 406 is sleeved between the second pulley 405 and the first pulley 402, a plurality of valve holes 407 corresponding to the air cylinders 201 are drilled on the valve column 404, and the ventilation assembly 5 is fixedly connected to the valve column 404. In the initial state, the valve hole 407 is not connected to the air duct 201, so the air introduced into the air duct 201 can only be discharged after being filtered by the filter cartridge 202. When the motor 401 is started, the worm 308 starts to rotate, and the worm 308 drives multiple worm wheels 307 to rotate together, so that the worm wheels 307 can drive the belt gear 305 and the rotating rod 301 to rotate. At the same time, the worm 308 drives the valve column 404 to rotate under the action of friction through the first pulley 402 and the second pulley 405, so that the valve hole 407 is connected to the air duct 201. At this time, the air introduced into the air duct 201 will blow the cleaned dust into the dust collecting component 7.

[0044] It is worth noting that since the second pulley 405 is rotatably connected to the valve column 404 through a damping bearing, the second pulley 405 drives the valve column 404 to rotate through friction. During the rotation of the valve column 404, the thrust cylinder 502 will be driven to rotate together. The thrust cylinder 502 is limited by the adjustment port 501 so that the valve column 404 can only rotate 90 degrees. Therefore, after the valve column 404 rotates to connect the valve hole 407 with the air cylinder 201, the valve column 404 will no longer continue to rotate.

[0045] Example 2: Please refer to Figures 8 to 10, combined with the base of embodiment 1, the ventilation assembly 5 comprises a plurality of adjustment openings 501 opened on the valve cylinder 403 between the two air cylinders 201, a plurality of thrust cylinders 502 corresponding to the adjustment openings 501 are fixedly connected to the side wall of the valve column 404, the adjustment openings 501 can limit the thrust cylinders 502, so that the thrust cylinders 502 have a range of 90 degrees of rotation upward, the dustproof net 503 is installed on the upper side wall of the dustproof box 101, the baffle 504 located below the dustproof net 503 is slidably connected to the lower inner wall of the dustproof box 101, the fixed plate 505 is fixedly connected to the lower inner wall of the dustproof box 101, the two insertion rods 506 are fixedly connected to the side wall of the baffle 504, the spring plate 507 is fixedly connected to the two insertion rods 506, the spring 508 is fixedly connected between the spring plate 507 and the fixed plate 505, when the dust inside the air cylinder 201 is cleaned, the telescopic pipe 206 will block the filter cylinder 202, so that the air introduced into the air cylinder 201 is no longer completely filtered and discharged through the filter cylinder 202, at this time the notebook is in a poor ventilation state, in order to change this situation, when the valve column 404 drives the thrust cylinder 502 to rotate, the thrust cylinder 502 not only can limit the angle of the valve column 404, but also can drive the baffle 504, so that the baffle 504 no longer blocks the dustproof net 503, at this time the dustproof box 101 is in communication with the inside through the dustproof net 503, so that the external air enters the notebook after being filtered by the dustproof net 503.

[0046] The plurality of air pipes 104 are fixedly connected with the wind speed sensor 6, and the wind speed sensor 6 is electrically connected with the motor 401 through the microcomputer and the controller, when a large amount of dust accumulates in the filter cylinder 202, the ventilation of the filter cylinder 202 will become poor, at this time the air inlet of the air pipe 104 will also become small, and the wind speed will be monitored by the wind speed sensor 6, the monitored value is processed by the microprocessor, when the wind speed value is less than the set value, the motor 401 will be started through the controller, thereby automatically cleaning the dust inside the filter cylinder 202.

[0047] The dustproof box 101 is provided with a dust collection assembly 7 at the rear side for collecting dust, the dust collection assembly 7 comprises a dust collection box 701 inserted into one end of the plurality of air cylinders 201 through a plurality of sleeve pipes, and the dust collection net 702 is installed on the side wall of the dust collection box 701, during the cleaning process of the dust inside the filter cylinder 202, the blown air and dust will be blown into the inside of the dust collection box 701, and the dust in the air is effectively blocked by the dust collection net 702, so that the dust collection box 701 plays a dust collection role, which is convenient for the user to clean the dust regularly, and can also be used to inform the user of the current dust quantity of the air environment.

[0048] Among them, centrifugal fan 103, motor 401, air speed sensor 6 are prior art, its structure principle will not be described in detail, while the device also includes power supply, switch, controller and power cable and other devices are not the main technology will not be described in detail.

[0049] The working principle of the application is:

[0050] In use, first, the user can start centrifugal fan 103, let the external air through the air pipe 104 and branch pipe 105 into the filter assembly 2 inside, so that the filter cartridge 202 can filter the dust in the air, to ensure that the airflow through the filter cartridge 202 inside helps notebook cooling, and effectively reduce the entry of dust.

[0051] When the filter cartridge 202 inside accumulated too much dust, the inner wall needs to be cleaned, at this time, the user can start the motor 401, so that it drives the worm 308 through the worm wheel 307, drive the belt gear 305 rotation, belt gear 305 through the toothed belt 306 further drive the two rotating rod 301 inside the air cylinder 201 in the same direction, so that the two winding disc 302 can be wound and unwound operation of the pull rope 303, so that the pull rope 303 can pull the moving sleeve 205 and scraper 203 together, when the moving sleeve 205 and scraper 203 move to the filter cartridge 202, the air introduced into the air cylinder 201 will bypass the scraper 203 from the outside of the filter cartridge 202 into the formation of reverse airflow, effectively blowing away the dust on the inner wall of the filter cartridge 202, for some strong adhesion of dust, they will also be scraped under the push of the scraper 203, at the same time, the worm 308 in rotation, through the first pulley 402 and the belt 406 drive the second pulley 405 rotation, and the second pulley 405 through the friction of the damping bearing drive valve column 404 rotation, so that the valve hole 407 and air cylinder 201 communication, at this time, the introduced air will blow the cleaned dust into the dust collecting box 701 inside, through the dust collecting net 702 to filter the dust in the air, so that the dust collecting box 701 play a role in dust collection, facilitate the user to clean the dust regularly, and can be used to help the user to estimate the current amount of dust in the air;

[0052] When the valve column 404 drive the thrust cylinder 502 rotation, the thrust cylinder 502 jolt baffle 504, drive the baffle 504 movement, at this time the dustproof box 101 through the dustproof net 503 and internal communication, so that the external air through the dustproof net 503 after entering the notebook, avoid the influence of the notebook cooling.

[0053] The above merely describes preferred specific embodiments of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art, according to the technical solution and inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A heat dissipation and dust prevention device for a notebook computer, comprising a blowing assembly, characterized in that: The blowing assembly comprises a dustproof box (101), the upper side wall of the dustproof box (101) is fixedly connected to a rubber pad (102), the lower side wall of the dustproof box (101) is fixedly connected to a centrifugal fan (103), a plurality of filter assemblies (2) are arranged inside the dustproof box (101), branch pipes (105) are connected between the plurality of filter assemblies (2), and an air duct (104) is connected between the branch pipes (105) and the centrifugal fan (103); The filter assembly (2) comprises a wind tube (201), a filter cartridge (202) is provided in the middle of the wind tube (201), a scraper block (203) is slidably connected to the inside of the wind tube (201), an annular block (204) is fixedly connected to the wind tube (201), a movable sleeve (205) is slidably connected to the wind tube (201), a telescopic tube (206) is fixedly connected between the annular block (204) and the movable sleeve (205), a dust removal assembly (3) is provided inside the wind tube (201) for driving the scraper block (203) and the movable sleeve (205) to move together, and a plurality of wind tubes (201) are fixedly connected to the same valve assembly (4).

2. The heat dissipation and dust prevention device for a notebook computer according to claim 1, characterized in that: The dust removal assembly (3) comprises two rotating rods (301) rotatably connected to the lower side wall of the wind tube (201), two winding discs (302) are fixedly connected to the two rotating rods (301), a plurality of winding discs (302) are wound with a pull rope (303), and two sets of pull ropes (303) are fixedly connected to the scraping block (203) and the movable sleeve (205), respectively.

3. The heat dissipation and dust prevention device for a notebook computer according to claim 2, characterized in that: Two dustproof shells (304) are fixedly connected to the lower inner wall of the air cylinder (201), and the rotating rod (301) is located inside the dustproof shell (304), and the pull rope (303) is arranged to pass through the dustproof shell (304).

4. The heat dissipation and dust prevention device for a notebook computer according to claim 3, characterized in that: The lower ends of the two rotating rods (301) are fixedly connected to belt gears (305), and a toothed belt (306) is sleeved between the two belt gears (305). A worm gear (307) is fixedly connected to the lower side wall of one of the belt gears (305), and a worm (308) meshing with the worm gear (307) is rotatably connected between the inner walls on the left and right sides of the dustproof box (101).

5. The heat dissipation and dust prevention device for a notebook computer according to claim 3, characterized in that: The valve assembly (4) comprises a motor (401) fixedly connected to the side wall of the dustproof box (101), and the output end of the motor (401) is fixedly connected to the worm (308).

6. The heat dissipation and dust prevention device for a notebook computer according to claim 5, characterized in that: A first pulley (402) is fixedly connected to the worm (308), and a plurality of the air cylinders (201) are connected to a same valve cylinder (403). A valve column (404) is rotatably connected inside the valve cylinder (403), and one end of the valve column (404) is rotatably connected to a second pulley (405). A belt (406) is sleeved between the second pulley (405) and the first pulley (402). A plurality of valve holes (407) corresponding to the air cylinders (201) are bored on the valve column (404), and a ventilation assembly (5) is fixedly connected to the valve column (404).

7. The heat dissipation and dust prevention device for a notebook computer according to claim 6, characterized in that: The ventilation assembly (5) comprises a plurality of regulating ports (501) bored on the valve cylinder (403), and a plurality of thrust cylinders (502) respectively corresponding to the regulating ports (501) are fixedly connected to the side wall of the valve column (404).

8. The heat dissipation and dust prevention device for a notebook computer according to claim 7, characterized in that: A dustproof net (503) is installed on the upper side wall of the dustproof box (101), a baffle (504) located on the lower side of the dustproof net (503) is slidably connected to the lower inner wall of the dustproof box (101), a fixed plate (505) is fixedly connected to the lower inner wall of the dustproof box (101), two insertion rods (506) are fixedly connected to the side wall of the baffle (504), both of the two insertion rods (506) pass through the fixed plate (505) and are fixedly connected to a spring plate (507), and a spring (508) is fixedly connected between the spring plate (507) and the fixed plate (505).

9. The heat dissipation and dust prevention device for a notebook computer according to claim 1, characterized in that: A wind speed sensor (6) is fixedly connected to the interior of each of the plurality of air ducts (104), and the wind speed sensor (6) is electrically connected to the motor (401).

10. The heat dissipation and dust prevention device for a notebook computer according to claim 8, characterized in that: A dust collecting assembly (7) is provided on the rear side of the dustproof box (101), and the dust collecting assembly (7) comprises a dust collecting box (701) plugged into a plurality of air ducts (201), and a dust collecting net (702) is installed on the side wall of the dust collecting box (701).

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